Foam matrix embolization device

a foam matrix and embolization technology, applied in the field of medical devices, can solve problems such as incomplete aneurysm embolization, and achieve the effect of improving the mechanical integrity of foam and improving the efficacy of a particular treatment modality

Inactive Publication Date: 2005-12-27
CODMAN & SHURTLEFF INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0018]In another aspect of the present invention there is provided an embolization device, which takes the form of an elongated flexible foam. The foam may take the form of a hydrogel. The foam may be used to deliver therapeutic agents to improve the efficacy of a particular treatment modality.
[0019]In yet another aspect of the present invention there is provided an embolization device, which takes the form of an elongated flexible cylindrical foam. To improve the mechanical integrity of the foam, the foam may contain reinforcing materials. Reinforcing materials may ta...

Problems solved by technology

These balloons do not generally conform to the aneurysm space thereby leaving unoccupied space leading to an incomplete aneurysm embolization.
Often ti...

Method used

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  • Foam matrix embolization device
  • Foam matrix embolization device
  • Foam matrix embolization device

Examples

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Embodiment Construction

[0032]FIG. 1 illustrates a first embodiment of the vascular embolization system 10. The vascular embolization system 10 includes a catheter 12, having a proximal hub 14, push rod 16 and embolization device 18. Embolization device 18 is disposed within the lumen at the distal section of catheter 12. Push rod 16 is slidably disposed within the lumen of catheter 12, proximal to embolization device 18.

[0033]FIGS. 2A and 2B show axial and cross sectional views of embolization device 18. The embolization device 18 comprises an embolization coil 20 surrounded by a foam sleeve 22. The embolization coil 20 is of the type commonly used to reduce or embolize a particular blood vessel. Depending on the flexibility needed and catheter system utilized the embolization coil 20 ranges in diameter from about 0.002 inches to 0.150 inches with a preferred range of about 0.006 inches to 0.052 inches. Materials used to make the embolization coil 20 include polymers, metals or composites in filament form...

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PUM

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Abstract

The present invention relates to a medical device for placement at a predetermined location within a passageway of the human body, and more particularly, relates to a flexible expandable embolization device which may be delivered by a catheter to a pre-selected position within a blood vessel to thereby embolize a blood vessel or a blood vessel defect, such as an aneurysm or fistula.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S)[0001]This patent application is a continuation of U.S. patent application Ser. No. 09 / 663,768, filed on Sep. 18, 2000, now U.S. Pat. No. 6,723,108, entitled, “Foam Matrix Embolization Device.”BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a medical device for placement at a predetermined location within a passageway of the human body, and more particularly, relates to a flexible embolization device which may be delivered by a catheter to a pre-selected position within a blood vessel to thereby embolize a blood vessel or a defect in a blood vessel, such as an aneurysm or fistula.[0004]2. Description of the Prior Art[0005]For many years flexible catheters have been used to place various devices within the vessels of the human body. Such devices include dilatation balloons, radiopaque fluids, liquid medications and various types of occlusion devices such as balloons and embolic coils. Examples o...

Claims

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Application Information

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IPC IPC(8): A61B17/12
CPCA61B17/12022A61B17/12145A61B17/1215A61B17/12154A61B17/12163A61B17/1219A61B2017/00893A61B2017/1205
Inventor JONES, DONALD K.MITELBERG, VLADIMIR
Owner CODMAN & SHURTLEFF INC
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